Breaches & incidents

The victims' side of the threat pictureWho is being attacked

Data breaches and cyber incidents made public — reported to regulators, disclosed by the companies themselves, or catalogued after a leak. Who was hit, when, how, and how many people or accounts were affected.

Incidents disclosed
613
last 12 months, every source
People in US health breaches
70.4M
474 breaches reported to HHS
Material incidents, US listed firms
22
SEC 8-K Item 1.05, 12 months
Accounts in new breach records
521.9M
125 breaches added to HIBP

Coverage. Mostly the United States: the cleanest public records of named victims come from US regulators. Ransomware victims worldwide, India included, are on the ransomware victims page. Every count is a lower bound — only disclosed incidents appear.

1Key findings

  • Most common attackHacking / intrusion78% of named-victim incidents in the last 24 months
  • Most targeted sectorHealthcare747 incidents in the last 24 months
  • Most people affectedConduent Business Services LLC62.2M people · 8 Oct 2025
  • Most accounts exposed1win96.2M accounts · 2 Nov 2024
  • Named most oftenFieldtex Products, Inc.in 5 disclosures, 20 Nov 2025 – 12 Dec 2025
  • Latest disclosureDouble CounterData breach (cause not stated) · 4 Oct 2026 · HIBP

3Sectors

Who the incidents hit, where the source names a sector, and how each sector was attacked.

Most affected sectorsLast 24 months. Select one to list its incidents.
  1. Healthcare747
  2. Information28
  3. Manufacturing21
  4. Professional Services19
  5. Retail18
  6. Finance, Insurance & Real Estate6
  7. Services5
  8. Transportation4
  9. Technology4
  10. Accommodation & Food3
  11. Administrative3
  12. Other Services2
Sector against type of attackIncidents per sector (rows) and attack type (columns). Darker means more.
  • In healthcare, 91% of incidents were hacking / intrusion.
Hacking / intrusionData breach (cause not stated)Unauthorised access or disclosureRansomwareTheft or lossError / misconfiguration
Healthcare68060241
Information253
Manufacturing201
Professional Services181
Retail171
Finance, Insurance & Real Estate6
Services5
Transportation4

4Largest incidents

The last 24 months. People and accounts are counted apart: an account list can hold one person many times. Credential compilations, which name no victim, are left out.

By people affected
  1. 1
    Conduent Business Services LLC62.2M people
    8 Oct 2025 · Hacking / intrusion · Healthcare · HHS
  2. 2
    DentaQuest, LLC15.0M people
    16 Jul 2026 · Hacking / intrusion · Healthcare · HHS
  3. 3
    Aflac Incorporated (“Aflac”)13.9M people
    8 Aug 2025 · Hacking / intrusion · Healthcare · HHS
  4. 4
    Aesto, LLC9.5M people
    31 Jul 2026 · Hacking / intrusion · Healthcare · HHS
  5. 5
    Episource, LLC6.7M people
    6 Jun 2025 · Hacking / intrusion · Healthcare · HHS
  6. 6
    AdaptHealth, LLC4.1M people
    14 Aug 2026 · Hacking / intrusion · Healthcare · HHS
  7. 7
    Unlimited Technology Systems, LLC3.8M people
    21 Jul 2026 · Hacking / intrusion · Healthcare · HHS
  8. 8
    CareCloud, Inc.3.8M people
    24 Jul 2026 · Hacking / intrusion · Healthcare · HHS
By accounts exposed
  1. 1
    1win96.2M accounts
    2 Nov 2024 · Data breach (cause not stated) · HIBP
  2. 2
    Under Armour72.7M accounts
    17 Nov 2025 · Data breach (cause not stated) · HIBP
  3. 3
    Suno55.3M accounts
    25 Nov 2025 · Data breach (cause not stated) · HIBP
  4. 4
    Canadian Tire38.3M accounts
    2 Oct 2025 · Data breach (cause not stated) · HIBP
  5. 5
    Addi34.5M accounts
    25 Mar 2026 · Data breach (cause not stated) · HIBP
  6. 6
    SoundCloud29.8M accounts
    15 Dec 2025 · Data breach (cause not stated) · HIBP
  7. 7
    Speedio27.5M accounts
    24 Dec 2024 · Data breach (cause not stated) · HIBP
  8. 8
    Paidwork23.3M accounts
    29 Mar 2026 · Data breach (cause not stated) · HIBP

5Hit more than once

Organisations named in more than one disclosure in the last 5 years (29 in all). That can be separate attacks, or one incident reported to more than one place — a regulator and investors, or on behalf of several clients.

OrganisationDisclosuresFirst – latestTypes of attackSources
Fieldtex Products, Inc. · Healthcare520 Nov 2025 – 12 Dec 2025Hacking / intrusionHHS
AltaMed Health Services Corporation · Healthcare31 Jun 2023 – 26 Feb 2026Hacking / intrusionRansomwareUnauthorised access or disclosureHHS, VCDB
United Healthcare Student Resources · Finance & Insurance31 Jun 2023 – 1 Jun 2023RansomwareVCDB
DentaQuest, LLC · Healthcare223 May 2026 – 16 Jul 2026Data breach (cause not stated)Hacking / intrusionHHS, HIBP
CarMax · Retail22 May 2025 – 24 Jan 2026Data breach (cause not stated)Hacking / intrusionHIBP, VCDB
WindRose Health Network · Healthcare227 Jan 2026 – 16 Sept 2026Hacking / intrusionHHS
AdaptHealth, LLC · Healthcare227 Jun 2026 – 14 Aug 2026Hacking / intrusionHHS, SEC 8-K
CareCloud, Inc. · Healthcare224 Mar 2026 – 24 Jul 2026Hacking / intrusionHHS, SEC 8-K
Clinical Registry Solutions · Healthcare29 Apr 2026 – 12 Jun 2026Hacking / intrusionHHS, VCDB
Open Arms Care Corporation · Healthcare21 Jun 2025 – 11 Jun 2026Hacking / intrusionHHS, VCDB
Gastro Health · Healthcare222 May 2026 – 22 May 2026Hacking / intrusionHHS
Radiology Associates of Richmond · Healthcare21 Jul 2025 – 21 May 2026Hacking / intrusionHHS

6All incidents

11,839 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2026-07-07SportsMed PT, LLCHacking / intrusionHealthcareNJ, US3,400 peopleHHS
2026-07-07T.A. Solberg Co., IncHacking / intrusionHealthcareWI, US1,012 peopleHHS
2026-07-06Champaign-Urbana Public Health DistrictHacking / intrusionHealthcareIL, US501 peopleHHS
2026-07-06HP DentalHacking / intrusionHealthcareNY, US548 peopleHHS
2026-07-06Hancock Regional HospitalUnauthorised access or disclosureHealthcareIN, US1,530 peopleHHS
2026-07-06The Medical Imaging Partnership dba Precision Imaging CenterHacking / intrusionHealthcareFL, US501 peopleHHS
2026-07-03Alta Orthopaedics Medical Group, Inc.Hacking / intrusionHealthcarePA, US24k peopleHHS
2026-07-02Averhealth HoldingsHacking / intrusionHealthcareVA, US9,909 peopleHHS
2026-07-02Family Medical Associates of Raleigh, PAHacking / intrusionHealthcareNC, US500 peopleHHS
2026-07-01Fluke fluke.comData breach (cause not stated)——821k accountsHIBP
2026-07-01The Connecticut Institute for the Blind Inc. d/b/a Oak HillHacking / intrusionHealthcareCT, US1,556 peopleHHS
2026-06-30Kubota Tractor Corporation Employee Welfare Benefit PlanHacking / intrusionHealthcareTX, US5,891 peopleHHS
2026-06-30Virta HealthHacking / intrusionHealthcareCO, US602 peopleHHS
2026-06-30Washington Department of Social and Health ServicesUnauthorised access or disclosureHealthcareWA, US8,600 peopleHHS
2026-06-29Center for Hearing and Speech dba Texas Hearing InstituteHacking / intrusionHealthcareTX, US30k peopleHHS
2026-06-29NAVIENT CORPHacking / intrusionFinance, Insurance & Real EstateVA, US—SEC 8-K
2026-06-29Optalis Management SolutionsHacking / intrusionHealthcareMI, US14k peopleHHS
2026-06-27AdaptHealth Corp.Hacking / intrusionHealthcarePA, US—SEC 8-K
2026-06-26MCBS, LLCHacking / intrusionHealthcareGA, US1.3M peopleHHS
2026-06-26SKR Group, Inc.Hacking / intrusionHealthcareMN, US1,718 peopleHHS
2026-06-26Women’s Center for RadiologyHacking / intrusionHealthcareFL, US66k peopleHHS
2026-06-25Operation PAR, Inc.Hacking / intrusionHealthcareFL, US146k peopleHHS
2026-06-23Advocate Warriors LLCHacking / intrusionHealthcareID, US750 peopleHHS
2026-06-23Anatomic and Clinical Laboratory Associates, P.C.Hacking / intrusionHealthcareTN, US170k peopleHHS
2026-06-23Cure DentalHacking / intrusionHealthcareTX, US878 peopleHHS
2026-06-23Elara CaringHacking / intrusionHealthcareTX, US22k peopleHHS
2026-06-22Chicago Family Health CenterHacking / intrusionHealthcareIL, US90k peopleHHS
2026-06-22Northeast Professional CaregiversHacking / intrusionHealthcareOH, US500 peopleHHS
2026-06-19Colorado Health Network Inc.Hacking / intrusionHealthcareCO, US68k peopleHHS
2026-06-19Community Health Center of Buffalo Inc.Hacking / intrusionHealthcareNY, US501 peopleHHS
2026-06-19Kentucky Mountain Health AllianceHacking / intrusionHealthcareKY, US31k peopleHHS
2026-06-19River Financial CorpHacking / intrusionFinance, Insurance & Real EstateAL, US—SEC 8-K
2026-06-19Texas Medicaid and Healthcare PartnershipHacking / intrusionHealthcareTX, US2,045 peopleHHS
2026-06-18Centers Lab NJ LLCHacking / intrusionHealthcareNJ, US542k peopleHHS
2026-06-18Cherry Street Services, Inc.Hacking / intrusionHealthcareMI, US501 peopleHHS
2026-06-18Columbia Orthopaedic GroupHacking / intrusionHealthcareMO, US500 peopleHHS
2026-06-18Family Health Centers of Southern IndianaHacking / intrusionHealthcareIL, US7,117 peopleHHS
2026-06-18Inter-Con Security icsecurity.comData breach (cause not stated)——276k accountsHIBP
2026-06-18Operation Endgame 4.0Credential compilation (no single victim)——4.3M accountsHIBP
2026-06-18Suntree Internal MedicineHacking / intrusionHealthcareFL, US9,810 peopleHHS
2026-06-178X8 INC /DE/Hacking / intrusionTechnologyCA, US—SEC 8-K
2026-06-17Aitkin County Health and Human ServicesHacking / intrusionHealthcareMN, US83k peopleHHS
2026-06-17Blue Fish PediatricsHacking / intrusionHealthcareTX, US62k peopleHHS
2026-06-16Decatur Diagnostic Laboratory Inc.Hacking / intrusionHealthcareAL, US500 peopleHHS
2026-06-16Houston City College hccs.eduData breach (cause not stated)——832k accountsHIBP
2026-06-15Glendale Community College glendale.eduData breach (cause not stated)——794k accountsHIBP
2026-06-15June 2026 Stealer LogsInfostealer logs——56.3M accountsHIBP
2026-06-15Moody Bible Institute moody.eduData breach (cause not stated)——2.3M accountsHIBP
2026-06-15Sysco sysco.comData breach (cause not stated)——2.7M accountsHIBP
2026-06-12American Tower americantower.comData breach (cause not stated)——217k accountsHIBP

Sources: US HHS breach portal, SEC EDGAR, Have I Been Pwned (CC BY 4.0) and the VERIS Community Database (CC BY-SA 4.0). Updated 2026-10-13 17:10 UTC.